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Posted on Oct 18, 2009
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What size socket do I need to change spark plugs on a 2003 camry 4 cylinder

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  • Master 1,498 Answers
  • Posted on Oct 18, 2009
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Joined: Jul 11, 2008
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Hi Rmk,

Plugs are one of three sizes;

In order of popularity they are 5/8, 13/16 or 3/4.

Best regards

Mike

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Find the camshaft cover, located at the top of the engine.
There yfind 4 square rubber objects with wires connected to the coils, pull them up, inside the exposed tubes you find the spark plugs.
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If you still get troubles, buy the repair manual here
Toyota Car Repair Manuals: Chilton & Haynes

There you can find detailed instrucions with pictures.
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